Our customer is using ADC08D1500 in an old design and try to read the temperature using the temperature diode. He noticed a higher temperature than expected and some glitches.According to the customer, he noticed a remark on the datasheet about the temp diode " however no specified accuracy is implied or ensured".
Page 46 of the datasheet states that "As a convenience to the user, the ADC08D1500 incorporates a thermal diode to aid in temperature measurement. However, this diode has not been characterized and TI has no information to provide regarding its characteristics. Hence, no information is available as to the temperature accuracy attainable when using this diode."
He would like to clarify what it means and would like to know if he can use the diode for testing or it is not recommended?